/**
 * @purpose JS常用方法
 * @author robin
 * @date 2012-03-12
 */

function getUrlParam(name){ 
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); 
var r = window.location.search.substr(1).match(reg); 
if (r!=null) return unescape(r[2]); return null; 
} 